Storage device having a drive arm with multiple read-write head
AssigneeFelicity Taiwan Corporation
InventorsWen-Lang Yu, Chia-Chien Yu
Life of this patent
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Abstract
A hard disk drive having a single drive arm with multiple read-write heads for synchronous access to data, wherein the multiple read-write heads are used for synchronous access to shorten the access time of the hard disk drive and the data.
Claims11
A storage device comprising a drive arm having at least two of read-write heads capable of accessing data synchronously, the storage device comprising:
- at least one hard disk, wherein each hard disk is divided into at least two regions;
- a drive arm, having at least two read-write heads, wherein each read-write head reads and writes data in a corresponding region of the at least two regions to increase the speed of accessing data by at least two times faster;
- and
- a control unit, separating first data to be written into a plurality of write-data, wherein each write-data corresponds to a different read-write head of the at least two read-write heads, wherein each of the at least two read-write heads is associated with a separate process unit, respectively, wherein each of said processing units comprises a separate series/parallel data converter for writing said first data into said at least two regions synchronously.
A storage device comprising a drive arm having at least two read-write heads capable of accessing data synchronously, the storage device comprising:
- at least one hard disk, wherein each hard disk is divided into at least two regions;
- a drive arm, having at least two read-write heads, wherein each read-write head reads and writes data in a corresponding region of the at least two regions;
- and
- a control unit, separating first data to be written into a plurality of write-data, wherein each write-data corresponds to a different read-write head of the at least two read-write heads for writing said first data synchronously, wherein the drive arm has four read-write heads, wherein each hard disk is divided into four regions, and the hard disk is in the state after it is formatted, wherein a rule for reordering serial numbers of the sectors are:
- under the same track, if a track in one of the regions is bad, a track in one of the regions is marked as not usable if said track is bad for all of said four read-write heads.
A storage device comprising a drive arm having at least two read-write heads capable of accessing data synchronously, the storage device comprising:
- at least one hard disk, wherein each hard disk is divided into at least two regions;
- a drive arm, having at least two read-write heads, wherein each read-write head reads and writes data in a corresponding region of the at least two regions;
- and
- a control unit, separating first data to be written into a plurality of write-data, wherein each write-data corresponds to a different read-write head of the at least two read-write heads for writing said first data synchronously, wherein the storage device has a configuration setting switch to change speeds of accessing data in one of the following conditions:
- 8× speed be changed to 4× speed with four read-write heads accessing data synchronously for a hard disk, 2 single-side hard disks with four read-write heads accessing data synchronously;
- 6× speed be changed to 3× with three read-write heads accessing data synchronously, and 2× speed with two read-write heads accessing data synchronously for a hard disk.
Dependencies are inferred from the claim text.